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Why Choose Our Warranty?

A warranty is only as valuable as the paper it’s printed on. With over half a century of combined experience we carry the most valuable warranty in the business; no one has stood the test of time longer than GJ MacRae.
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We Are The Originals

Home of the original 15 year transferable warranty. Beware of imitators and empty warranty promises.
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A True 40 Year History

A true four-decade strong legacy, no one has been waterproofing and underpinning in the GTA longer.
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Family Owned

A truly family owned and operated waterproofing and underpinning company in the GTA.
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10,000+ Warranties

Surpassing over 10,000+ certified warranties issued no other company has our level of local expertise.
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Our Only Specialty

This is all we do! We started in 1975 and continue to lead the industry with quality work and guaranteed results.
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Knowledge and Longevity

Four decades and 10,000+ warranties later, trust our specialized knowledge and let our longevity work for you!
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Industry Pioneers

We were the first to develop and introduce the residential overflow vibro-pak underpinning process.
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Exceptional Service

Award winning customer service, quick response times and free estimates make us the perfect fit for your project.
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Here For The Long Run

After decades in the business we are truly in it for the long run! We don’t do quick fixes, we provide lasting results.
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We Love What We Do!

Yes, we truly love what we do! Heritage restoration, waterproofing, underpinning and structural repairs are our forté!

SINCE 1975

Our Awards

A warranty is only as meaningful as the company that issues it. We don’t simply issue a document, we issue a true guarantee.
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(905) 824-2557